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Doctor insights on:
Mri Of Knee Without Contrast
1
Can synovitis of the knee show up on MRI without contrast?
Yes,: synovitis will generally show up on a noncontrast knee mri. ...Read more
Mri (Definition)
Mri or magnetic resonance imaging is one of the more recently developed imaging modalities available to physicians. It uses powerful magnets to generate images. There is no ionizing radiation which is a major advantage over many other modalities. Mri is the best imaging exam that we have for most soft tissue and joint related problems. There are radiologists ...Read more
2
Mri of the brain without contrast?
Maybe safer in some: Gadolinium contrast could potentially cause kidney complications on rare occasion. Mri without contrast will reveal areas of atrophy, stroke, bleeding, tumors, hydrocephalus, etc, but will not clearly show certain ms lesions, aneurysms, avm's, some inflammatory problems, so, always discuss with your doctor as to why an ordered MRI might be done in a variety of ways. ...Read more
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3
Can labrum tear (fray) be seen conclusively on MRI without contrast? How about during an arthroscopic surgery of shoulder? MRI with contrast needed?
Labrum tears: can be seen on routine MRIs is they are large or severe. MRI with intrarticular contrast(MR arthrogram) is much more accurate, particularly for smaller tears. Arthroscopy will show labral tears. ...Read more
4
Can MRI of the lumbosacral spine show infection without contrast?
Yes. MRI does not : Need contrast enhancement and is a great imaging device for making a diagnosis of infection inthe spine whether it involves bone ( osteomyelitis ), disc ( discitis) or an epidural abscess. ...Read more
5
Would a MRI of brain without contrast show any infection ?
Possibly: But not definitively! needs contrast to better define the location and extent. ...Read more
6
Can inflammatory arthritis show up on mri without contrast or is contrast needed?
Varies: An MRI is a structural test and show structural changes that can occur in advanced inflammatory arthritis that has structural changes such as cartilage loss, it can also show an inflammatory pannus as well. These findings can be seen in a study without contrast. Contrast can be used in specific cases when more information is needed. Inflammatory arthritis is often first diagnosed with bloodwork ...Read more
7
Is MR arthrography of the hip joint a fancy way of saying MRI of the hip with contrast media (Gadalinium)?
Yes and no.: A standard MRI with contrast usually implies an intravenous injection of gadolinium. An MRI arthrogram means that the contrast is injected directly into the joint space, usually with fluoroscopic guidance of the needle. ...Read more
8
Can MRI ( without contrast) of lower back diagnose arachnoiditis?
Yes: Yes, it correlates quite well with CT myelography in diagnosing arachnoiditis ...Read more
9
What can a spinal MRI show without contrast?
It shows a lot: Contrast not always needed.
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10
Is MRI of the knee usually done with or without contrast?
No contrast usually: Contrast is not usually given for an MRI of the knee. Many times, the knee has an effusion, which acts as a natural contrast agent for MRI. In complex situations, such as after surgery or when the patient's symptoms are more sever than expected by the Doctor, then contrast can be used either by venous injection or with an arthrogram. ...Read more
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11
Benefits of MRI with contrast for lumbosacral injuries?
Not needed: Acute lumbosacral injuries do not require MRI with contrast. ...Read more
12
Are nerves visable on MRI without contrast?
Yes: Nerves can be visualized especially using high-resolution MRI techniques. ...Read more
13
Do MRI scans usually require an injection of contrast?
Depends on diagnosis: Usually MRI scans of the spine and joints (shoulder, knees, etc) do not need a contrast injection. Contrast is given for spine MRI scans to search for tumors and postoperative scarring. Mri scans of the brain, abdomen, pelvis can be performed with a contrast injection to help find a tumor, but these scans can also be performed without injection. Breast MRI should be performed with contrast. ...Read more
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14
Does MRI abd/pelv without contrast find evidence of most tumors?
Frequently: MRI if abdomen/ pelvis frequently identify most existing neoplasms but can miss the presence of one, especially if metastatic from a more distant site. We therefore employ PET/CAT to evaluate entire site especially for a hidden primary in the face of metastasis. If multiple liver lesions present, PET can identify which might be hemangiomas and determine approach to be used for management. ...Read more
15
Can a brain mri without contrast detect signs of MS?
Yes, it can: MRI is definitely terrific in demonstrating MS lesions. The newer ones which would be contrast positive allow us to make treatment decisions and changes. The older lesions can be seem chronically on a non-contrast MRI. ...Read more
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17
True that MRI brain scans usually require an injection of contrast?
Not really: It depends on your symptoms and what disease or problem your Doctor thinks you may have. In my practice, slightly less than half of all the brain studies are given contrast. ...Read more
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18
What would be the point of ordering a thoracic MRI without contrast versus with contrast?
MRI w/w/out Contrast: MRI uses magnetic fields to form images in the body and term with and without contrast comprises the series of films of the MRI. The study is performed with contrast in event there is need for specific differentiation of tumor from other structures, find smaller lesions, and see dynamic assessment of lesion (how active). ...Read more
19
Can MRI without contrast diagnose stroke or is CT better?
MRI: Both studies are commonly used in the early evaluation of stroke. A ct can rule out a hemorrhagic stroke quickly in the er. A MRI is more sensitive for a ischemic stroke but takes longer to perform. ...Read more
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20
Will a CT scan of the lumbar spine post fusion without contrast show pinched nerves or just bone structure and hardware?
Limitations: No, a better view of nerve compression will be available if MRI is chosen, but the CAT does reveal nice images of fusion integrity, and surrounding vertebral bodies and foramina. ...Read more
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